Ontario International Airport
Ontario, United StatesONT / KONT
Major airport · 63 direct destinations · 2 runways · longest runway 12,198 ft
78 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Route
Ontario → Las Vegas
ONT
OntarioOntario International Airport
OntarioOntario International AirportLASLas VegasHarry Reid International Airport
Las VegasHarry Reid International Airport- Distance
- 197 mi
- Estimated flight time
- ~55m
Same local time in Ontario and Las Vegas.
Observed nonstop
How often does this route fly?
Frequency
Several times a day
On average around 7 flights a day, observed from October 2025 to September 2026.
- 7
- flights per day
- 7
- busiest month · Oct
- 6
- quietest month · Dec
- 40 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 7Jan2026
- 7Feb
- 6Mar
- 7Apr
- 7May
- 7Jun
- 7Jul
- 7Aug
- 7Sep
- 7Oct2025
- 7Nov
- 6Dec
Airlines
Who flies it
Southwest Airlinesall year
Frontier Airlinesall year
Westair Industriesspring
American Airlinesnow and then
Alaska Airlinesnow and then
United Airlinesnow and then
Through the day
Departure times
Local time in Ontario. Most departures between 14:00 and 17:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 7.6Mon
- 7.4Tue
- 6.3Wed
- 6.1Thu
- 7.4Fri
- 7.5Sat
- 5.7Sun
Fleet
Aircraft observed
- Boeing 737-700B73727%
- Boeing 737 MAX 8B38M21%
- Boeing 737-800B73818%
- Airbus A320neoA20N15%
- Airbus A321neoA21N10%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 7 | 205 |
|
| February 2026 | 7 | 198 |
|
| March 2026 | 6 | 187 |
|
| April 2026 | 7 | 196 |
|
| May 2026 | 7 | 205 |
|
| June 2026 | 7 | 208 |
|
| July 2026 | 7 | 220 |
|
| August 2026 | 7 | 198 |
|
| September 2026 | 7 | 211 |
|
| October 2025 | 7 | 234 |
|
| November 2025 | 7 | 218 |
|
| December 2025 | 6 | 190 |
|
Airlines observed on this route
From observed callsign routes on ONT-LAS - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Ontario: 63.
- Direct destinations observed from Las Vegas: 171.
The airports on this route
Harry Reid International Airport
Las Vegas, United StatesLAS / KLAS
Major airport · 171 direct destinations · 4 runways · longest runway 14,836 ft
68 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
SNA LASJohn Wayne Orange County International AirportSanta Ana is about 30 mi from Ontario.View route →LGB LASLong Beach International AirportLong Beach is about 35 mi from Ontario.View route →HHR LASJack Northrop Field Hawthorne Municipal AirportHawthorne is about 43 mi from Ontario.View route →BUR LASHollywood Burbank/Bob Hope AirportBurbank is about 45 mi from Ontario.View route →
About the route from Ontario to Las Vegas
The observed direct connection between Ontario International Airport (ONT) and Harry Reid International Airport (LAS) covers approximately 197 mi. The estimated flight time is around 55m. Alaska Airlines, American Airlines, Frontier Airlines, Southwest Airlines, United Airlines and Westair Industries have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Ontario from Las Vegas by air?
- The great-circle distance between Ontario International Airport and Harry Reid International Airport is approximately 197 mi.
- How long is the flight from Ontario to Las Vegas?
- Based on the distance, the estimated flight time is about 55m. This is an estimate, not a schedule.
- Is there a direct connection from Ontario to Las Vegas?
- Yes, a direct connection between ONT and LAS has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Alaska Airlines, American Airlines, Frontier Airlines, Southwest Airlines, United Airlines and Westair Industries.
- How often is there a flight from Ontario to Las Vegas?
- On average around 7 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 2,470 observed flights. Mainly Southwest Airlines, Frontier Airlines, Westair Industries. That is an observation, not a timetable.
- What is the current time difference between Ontario and Las Vegas?
- Same local time in Ontario and Las Vegas.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.